My Boss Oppa Has Crossed the Line

Don't cross the line just because you had a one night stand! Ga-eul ends up having a one night stand with the wrong man instead of the one she was promised. I was shocked when I found out the truth, but that wasn't even a problem. Your brother's boss, Seo Do-hyeon, is your one-night stand partner! I was determined to get a job at a better company than my brother, but after being tempted by a friend, I decided to give it a try and had a one-night stand! What kind of lightning is this? But my one night stand partner, Seo Do-hyun, is really nice. He's handsome, talented, and amazing at night and I honestly don't hate the fact that he just crosses the line into becoming a rookie. One day, when I couldn't help but feel anxious, Do-hyeon, knowing Ga-eul's age, said goodbye to her and left...!!! Source: MU Includes 1 extra volume.